package com.thank.web.controller;

import com.thank.dto.FileInfo;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * description: none
 *
 * @author thank
 * 2018/2/19 23:24
 */
@RestController
@RequestMapping("/file")
public class FileController {

    private String folder = "F:\\stu_code\\Spring Security\\thank-security-demo\\src\\main\\java\\com\\thank\\web\\controller";

    @PostMapping
    public FileInfo upload(MultipartFile file) throws  Exception {

        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());

        File localFile = new File(folder, System.currentTimeMillis() + ".txt");
        file.transferTo(localFile);
        return new FileInfo(localFile.getAbsolutePath());
    }

    @GetMapping("/{id}")
    public void download(@PathVariable String id, HttpServletRequest request, HttpServletResponse response){
        try (InputStream inputStream  = new FileInputStream(new File(folder, id+".txt"));
             OutputStream outputStream = response.getOutputStream();
        ) {
            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition", "attachment;filename=test.txt");
            IOUtils.copy(inputStream, outputStream);
            outputStream.flush();

        } catch (Exception e) {

        }
    }
}
